HomeMy WebLinkAbout19940929 Ver 1_Complete File_19940927State of North Carolina
Department of Environment,
Health and Natural Resources
Division of Environmental Management
James B. Hunt, Jr., Governor
Jonathan B. Howes, Secretary
A. Preston Howard, Jr., P.E., Director
,I". WA
A&41
[D FE F1
October 10, 1994
Swain County
DEM Project # 94929
APPROVAL of 401 Water Quality Certification and ADDITIONAL CONDITIONS
Mr. C.R. Styles
District Engineer FILE
NC DOT Bryson City, N.C. 28713
Dear Mr. Styles:
You have our approval to place fill material in 0.2 acres of wetlands or waters for the purpose of
road improvement at SR 1107 and SR 1109, as you described in your application dated 27 August
1994. After reviewing your application, we have decided that this fill is covered by General Water
Quality Certification Number 2732. This certification allows you to use Nationwide Permit Number 14
when it is issued by the Corps of Engineers.
This approval is only valid for the purpose and design that you described in your application. If
you change your project, you must notify us and you may be required to send us a new application.
For this approval to be valid, you must follow the conditions listed in the attached certification. An
additional condition is that DOT stream relocation guidelines must be used for the necessary stream
relocation. In addition, you should get any other federal, state or local permits before you go ahead
with your project.
If you do not accept any of the conditions of this certification, you may ask for an adjudicatory
hearing. You must act within 30 days of the date that you receive this letter. To ask for a hearing,
send a written petition which conforms to Chapter 150B of the North Carolina General Statutes to the
Office of Administrative Hearings, P.O. Box 27447, Raleigh, N.C. 27611-7447. This certification and
its conditions are final and binding unless you ask for a hearing.
This letter completes the review of the Division of Environmental Management under Section 401
of the Clean Water Act. If you have any questions, please telephone John Dorney at 919-733-1786.
Sincerely,
P.Ptop Ho ard, J . E.
Attachment
cc: Wilmington District Corps of Engineers
Corps of Engineers Asheville Field Office
Asheville DEM Regional Office
Mr. John Dorney
Central Files
94929.1tr
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone 919-733-7015 FAX 919-733-2496
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post-consumer paper
09-- j
SM7E o
4ullbSUED
STATE OF NORTH CAROLINA
DEPARTMENT OF TRANSPORTATION
JAMES R. HUNT, JR. DIVISION OF HIGHWAYS R. SAMUEL HUNT II I
GOVERNOR SECRETARY
Bryson City, NC 28713
September 27, 1994 ?.?
Swain County
SR 1107 and SR 1109 - -
Mr. Bob Johnson
215 Army Corps of Engineer
Reg. Field Office
Room 75, Grove Park Ave.
Asheville, NC 28801-2714
Dear Mr. Johnson,
The North Carolina Department of Transportation is proposing to grade, drain, base and
pave primarily along the existing roadway of SR 1109, Dills Road, in Swain County. In order to
construct this project in accordance with our current secondary road standards and due to
rechannelization of Totherow Branch (DEM Class C) and replacement of pipe culverts, we are
requesting authorization under Section 404 of the Clean Water Act.
I am sending a straight line diagram with our proposed erosion control and construction
limits at various sites along this project. In addition a typical section of the road, cross sections,
drawings for pipe replacements and the channel change of Totherow Branch, general notes and
standards on erosion control measures and a marked county map are enclosed. We propose to install
the new culverts slightly below the existing streambed elevation where bedrock is not encountered to
minimize impact to wildlife habitat and allow the existing stream gradients to remain as unchanged as
physically possible.
The best management practices will be used to minimize and control sedimentation and
erosion on this project. The construction foreman will review all erosion control measures daily to
ensure sedimentation and erosion controls are being effectively controlled. If the planned devices
are not functioning as intended, they will immediately be replaced with better devices. The silt fences
and other erosion control devices will be in place prior to pipe construction and will remain in place
until the project is stabilized.
By copy of this letter I am asking Mr. David Yowe, North Carolina Resources Commission,
District Fisheries Biologist to comment directly to you concerning the 404 Nationwide permit request.
0
Mr. Bob Johnson
Page 2
September 27, 1994
Also by copy of this letter, I am requesting authorization to proceed under Section 401 of
the Clean Water Act from Division of Environmental Management.
We would like to begin construction as soon as possible. If further information is required,
please advise. Your early review and consideration will be appreciated.
Yours truly,
C. R. Style P.
District Engineer
cc: Mr. Richard Phillips, P. E., Regional Engineer DEBNR
Mr. F. D. Martin, P. E., Division Engineer
Mr. E. L. Ingle, Area Roadside Environmental Engineer
Mr. Eric Galamb, Water Quality Certification Unit, DEM
Mr. David Yowe, District Fisheries Biologist, NCWRC
NOTIFICATION ]FORM
INFORMATION SHEET
Nationwide permits that require notification to the Corps of Engineers
Nationwide permits that require application for Section 401 certification
A. NOTIFICATION. TO THE CORPS OF ENGINEERS DISTRICT ENGINEER. (REFER TO
ITEM B. BELOW FOR DIVISION OF ENVIRONMENTAL MANAGEMENT APPLICATION RE-
QUIREMENTS AND SPECIFICALLY NOTE NWP 26 DIFFERENCE.)
Certain nationwide permits require notification to the Corps of Engineers before work can proceed. They are as follows:
NWP 5 (only for discharges of 10 to 25 cubic yards)
NWP 7
NWP 13 (only for stabilization activities in excess of 500 feet in length or greater-than an average of one cubic yard
per running foot)
NWP 14 (only for fills in special aquatic sites, including wetlands, and must include a delineation of affected special
aquatic sites)
NWP 17
NWP 18 (required when discharge exceeds 10 cubic yards or the discharge is in a special aquatic site and must include
a delineation of the affected special aquatic site, including wetlands)
NWP 21 (must include a delineation of affected special aquatic sites, including wetlands)
NWP 26 (only for greater than 1 acre total impacts and must include a delineation of affected special aquatic sites,
including wetlands)
NWP 33 (must include a restoration plan of reasonable measures to avoid and minimize impacts to aquatic resources)
NWP 37
NWP38 (must include a delineation of affected special aquatic sites, including wetlands)
For activities that may be authorized by the above listed nationwide permits that require notification, the
applicant shall not begin work
a. Until notified that the work may proceed under the nationwide permit with any special conditions imposed by
the District Engineer, or
b. If notified that an individual permit may be required, or
c. Unless 30 days (calendar) have passed from the time a complete notification is received by the District Engineer
and no notice has been received from the District Engineer, and required state approvals have been obtained.
Required state approvals include: 1) a Section 401 water quality certification if authorization is requested for a
discharge of dredged or fill material, and 2) an approved coastal zone management consistency determination if
the activity will affect the coastal area.
Use of NWP 12 also requires notification to the District Engineer, but work may not begin until written
concurrence is received from the District Engineer. The time periods described above do not apply.
Furthermore, requirements to notify the U.S. Fish and Wildlife Service (USFWS), the National Marine
Fisheries Service (NMFS), and the State Historic Preservation Office (SHPO), as indicated below and on the
notification form, do not apply.
B. APPLICATION TO DEM FOR NATIONWIDE PERMIT SECTION 401 CERTIFICATION.
Certain nationwide permits require an application to DEM in order to obtain Section 401 water quality certification
They are NWP 6, NWP 12, NWP 15, NWP 16, NWP 17, 'NWP 21, NWP 33, NWP 34, NWP 38, and NWP 40.
Certain nationwide permits were issued general certifications and require no application. They are NWP 3, NWP 4,
NWP 5, NWP 7, NWP 20, NWP 22, NWP 23 (requires notification to DEM), NWP 25, NWP 27, NWP 32, NWP 36,
and NWP 37.
The following nationwide permits were issued general certifications for only limited activities: NWP 13 (for projects
less than 500 feet in length), NWP 14 (for projects that impact waters only), NWP 18 (for projects with less than 10
cubic yards of fill in waters only), and NWP 26 (for projects with less than or equal to one-third acre fill of waters or
wetlands). Projects that do not meet these criteria require application for Section 401 water quality certifications.
C. NOTIFICATION/APPLICATION PROCEDURES.
The attached form should be used to obtain approval from the Corps of Engineers and/or the N.C. Division of
Environmental Management as specified above. The permittee should make sure that all necessary information is
provided in order to avoid delays. One copy of the completed form is required by the Corps of Engineers and seven
copies are required by DEM. Plans and maps must be on 8 1/2 x 11 inch paper.
Endangered species requirement: For Corps of Engineers notifications only, applicants must notify the U.S. Fish and
Wildlife Service and/or the National Marine Fisheries Service regarding the presence of endangered species that may
be affected by the proposed project.
U.S. FISH AND WILDLIFE SERVICE
RALEIGH FIELD OFFICE
P.O. Box 33726
Raleigh, NC 27636-3726
Telephone (919) 856-4520
NATIONAL MARINE FISHERIES SERVICE
HABITAT CONSERVATION DIVISION
Pivers Island
Beaufort, NC 28516
Telephone (919) 728-5090
Historic resources requirement: For Corps of Engineers notifications only, applicants must notify the State Historic
Preservation Office regarding the presence of historic properties that may be affected by the proposed project.
STATE HISTORIC PRESERVATION OFFICE
N.C. DIVISION OF ARCHIVES AND HISTORY
109 East Jones Street
Raleigh, NC 27601
Telephone (919) 733-4763
Information obtained from these agencies should be forwarded. to the Corps.
A,
DEM ID: ACTION ID:
Nationwide Permit Requested (Provide Nationwide Permit ft _NWP 14
JOINT FORM FOR
Nationwide permits that require notification to the Corps of Engineers
Nationwide permits that require application for Section 401 certification
WILMINGTON DISTRICT ENGINEER
CORPS OF ENGINEERS
DEPARTMENT OF THE ARMY
P.O. Box 1890
Wilmington, NC 28402-1890
ATTN: CESAW-CO-E
Telephone (919) 251-4511
WATER QUALITY PLANNING
DIVISION OF ENVIRONMENTAL MANAGEMENT
NC DEPARTMENT OF ENVIRONMENT, HEALTH,
AND NATURAL RESOURCES
P.O. Box 29535
Raleigh, NC 27626-0535
ATTN: MR. JOHN DORNEY
Telephone (919) 733-5083
ONE (1) COPY OF THIS COMPLETED APPLICATION SHOULD BE SENT TO THE CORPS OF ENGINEERS.
SEVEN (7) COPIES-SHOULD BE SENT TO THE N.C. DIVISION OF ENVIRONMENTAL MANAGEMENT.
PLEASE PRINT.
1. Owners Name: North Carolina Department of Trans-Dortation
2. Owners Address: P- O. Box 250, Bryson City, NC 28713
3. Owners Phone Number (Home):
(Work): (704) 488-2131
4. If Applicable: Agent's name or responsible corporate official, address, phone number.
C. R. Styles, P. E.
5. Location of work (MUST ATTACH MAP). County: Swain
Nearest Town or City: Bryson City
Specific Location (Include road numbers, landmarks, etc.): SR 1109, Dills Road and SR 110-7, Wesser Road.
6. Name of Closest Stream/River: Wesser Creek
7. River Basin: Little Tennessee River Basin
8. Is this project located in a watershed classified as Trout, SA, HQW, ORW, WS I, or WS R? YES [) NO k]
9. Have any Section 404 permits been previously requested for use on this property? YES [ ] NO [x]
If yes, explain.
10. Estimated total number of acres of waters of the U.S., including wetlands, located on project site:
11. Number of acres of waters of the U.S.. including wetlands, impacted by the proposed project:
Filled: 0.2 Ac
Drained:
Flooded:
Excavated:
Total Impacted: 0.2 Ac
12. Description of proposed work (Attach PLANS-8 1/2" X 11" drawings only): To widen and pave _
SR 1109 to meet current NC DOT standards.. "
13. Purpose of proposed work: Same
14. State reasons why the applicant believes that this activity must be carried out in wetlands. Also, note measures
taken to minimize wetland impacts.
15. You are required to contact the U.S. Fish and Wildlife Service (USFWS) and/or National Marine f isheries Service
(NMFS) regarding the presence or any Federally listed or proposed for listing endangered or threatened species or critical
habitat in the permit area that may be affected by the proposed project. Have you done so? YES [X ] NO [ ]
RESPONSES FROM THE USFWS AND/OR NMFS SHOULD BE FORWARDED TO CORPS. with apphcatic
16. You are required to contact the State Historic Preservation Officer (SHPO) regarding the presence of historic
properties in the permit area which may be affected by the proposed project? Have you done so? YES [ ] NO gx]
RESPONSE FROM THE SHPO SHOULD BE FORWARDED TO CORPS. with application
17. Additional information required by DEM:
A. Wetland delineation map showing all wetlands, streams, and lakes on the property.
B. If available, representative photograph of wetlands to.be.impacted by project.
C. If delineation was performed by a consultant, include all data sheets relevant to the placement of the
delineation line.
D. If a stormwater management plan is required for this project, attach copy.
E. What is land use of surrounding property? Rural Woodland - Residential
F. If applicable, what is proposed method of sewage disposal?
Owner's Signature
Date
SWIM BALE) t, GAP
HOGBACK !L41
IM
T
1 12
8 .4 113. 1136
V SHOPE
20 ISO -OPE
S.7 Rn 74 7 K 0 1135
CHEO..
B?v 11 .7 1113 0 R E S T
- I iq 1130 6
4 1 131 AMCA
Lm KNOB
1133
132
III e
CWK '?o PE
'.W D14
2
1-94 1105 -V-?.PINNACtE KNOB
D D
IN T 7
7.
I 1? SRVEJILMINE GAP
IF
N 0 ol It. _.':;1?2. It
4 64b
C
SWAIN c0.
ROAD NAME DILLS
i
S. R. 1109
FROM 5,R.110-7 4,000 TO DEAD END
ADDITION
IMPROVEMENT I/
TO BE PAVED ?
P POLES TO BE MOVED 2 AND 2G.W-S
T. POLES TO BE MOVE D
1
V-vv W I DTH 45
SCALE 1- 50
DATE 2- 25-92
LHUSDUIV LONIkU SKIVIDOL
TEMP STONE DI TCH CHECK
ppo
'0 CK S/L T CHECK DA M
LT 3,4SIIV-B
-MP SLOPE DR- 411V
-MP. SILT DITCH
I P TH EM BANKMEIV 7-
T
TS D
L T FEN CE
WP S7-PEE4 M CPOSSIIV G
>ER G LASS ROVING
?-- F G R
?uXISC1IIJ`i1Uad .........................
. ........................ .
Control of Access Line.' .............. - - A
Slope Stake Dine . ................ . -
`" C u l v e r t=. ..... ...... --=--, +
&J, 0+0 or
Telephone or.'I"elegraph Pole ......... it: IS'a' -0- , 1I11tol, •-o- 1
Tower Pole and Line... ........ -? ??
1'Potiver Pole b 1
.EasemenL Lille. -
Mowing I_iniit. :." . .........'.........
Guard Rail ........ ................ .. T z T
S.nitary..Sewer•Line ................ .. S .5
V, per Lino, ......'. ..... • ... .......... -
Gas
G? S Line .'............ ...............
t?tcc?t?usi:D c\ISTI.Nc
................... - --- -- -u-= -??-
ChalI1 Lint.- Fence-*
Woven Wire Fence ... . .............. --? -?--
Re?cnc:?I atioli .......:................ .
RefoI•estaCion . ' ....... .
Ter,iporarv Silt Ditch .' ............... .
Temporary SUL Felice .................
Ter:porary.Slope Draill ....... ..... .
Brush Barriei ................
Silt Check Dam,TA)e A..-:............. .
Silt Check Dam Type B .. . ............ .
3"11L Basin Z?-pe 'A' ...:.:.. ..' .........
7Lt Basin Type B . .
RoCk Silt Check Dam .... ............. .
?-C,111 Del-III .........................
-cm n, Stone Ditch Check ....... , .
I
I
111
BRAD MC CALLISTER
WESSEP RD.
BPYSCN CITY N.C.
CKEITH MAT-70X
H WY 19 W.
EI^'YSON CITY, N.C.
'-,-GO I
01 5+00
?-E- 4 5 ?-f
tr
i
4y
?i
Y
Yo
`A
3 00
Ft
A-cmp
rr
I?
JIM DISHER
637 OLD FRIARS RD.
° COLUMBIA, S.C. 29210
O
i
v
rin
, I
-?-
1-45
I
I
18
?J + 00
CMp
0t00
0
fl
KEN KASTORFF
1-i {/Y. 19 'Y'V.
bRYSON CITY, N.C.
50
0
Ii,)+00. , -t, 110+00
i ?
?-r 4 5=}
I
I
16, CMP
7*45
cr-l I
Icr-
4 5 ?-?
I
I `
I
+
5+{01 (5+00
FRANK RAGUSA
W ESSER RD.
BRYSON CITY N.C.
0
Ib+UU?
i
15 t UU
4 5??l
0
IT
fT
11E CMP
i
(
lcr_
I
I ± 4 5 -?-I
i
I
T
i I
10 * 001 110+00
v I
O
w?vv
I
I
LANCE CLANIPITT
WESSER RD.
BRYSON CITY, NC
8
FRED RAY
C/O DAVE EVERS
24 FINALES AVE.
ASHEVILLE, N.C. 28803
O
45=
I e_l u T VV
}
I
I 4-
15 -cMP
°
17 50
i
I
I `01
v
18 CMn
I 4 S---
15
i i
15 + 001
15 + 00
C4)
25+ 00? ? 2-5+00
48' C M P
70
I? 4 5
18' CMP
2,-? + 6 0
f
STA. 22+72=22 + P3
WOODEN STORAGE SHED
MBE MOVED OFF R1W
cr-
I
2-2-c
!
I3
I
I
36 CMP
e
?
I 4 5'
i
I
I !
20 + 001 120-00
BILLY DILLS
HWY. 19 W.
BRYSON CITY, N.C.
0
0
F
70
30+OOI
I30+OU
*?Q
4 5-?-
"1
I
i
i?
0m
r?
rt
c-
i 18CMP
FLOYD WALBERT
WESSER RD.
BRYSON CITY ?l G
3
I?
cir-I
I
6 + 00
a
I -45 STA.24+.75=26+75
4E'X 150" C.M.P
WITH JUNCTION BOX
(?
f '_/
I
1
I STA. 25 + 60 25 * 65
REDUCE R/W TO 20'RT. OF CL
FOR WOODEN STEPS
2500 (25+00
J + 00? I35 * 00
45?-)
n I
i
0
STA. 334, 00 = 33+ 30
REDUCE RIW TO 16" RT. OF
FOR HOUSE
cr- Icr-
18 CMP
, -??
1-45
I
I
I 18 CMP I
30+001 I-L 130+00
E.0._F
io
+00 40,
I 18 CMP 1
e
?-? 4 5 =?- I
I
3? ; 65
1
38 + 65
1
CECIL COLLINS
WESSER' RD.
BRYSON CITY, I.C.
10
I
U
?r
iy
i?
0
L'
L
(V
?
I -E- 4 5'
I 1
I 18 CMP
35+001 135+00
POLE DATA
?R0 J E C T 000NTY c11/ ?'.t? SHEET
OWNER OF POLES ??? -22du/er 5?"
N.O. N Q. o •
rATION
POLE DIST_ FROM IL
.PRESENT RD, DIST. FROM CL.
PROJECT, DIST Q PROD.
AFTER MOVING
REMARKS
NO. R T. LT. R T. LT. R T. LT.
?E ?o',c ivcv S?
;w4"-
3'
1
r
5.
r 1 l / ?bYNt1 !
VU,
- ,' \ /' 1,%r ? '?'? ??? ?"
t
o
f4l
352 ? '? /li/' :l ? '? ??????? ??(?-?
Oil nC
ilm
-'A
L<<? \ Il
11 q J!
9 ori?
l %
6vj
o
Il J 1 c=
•
i
l
?
•
Y ? i 1
t
I,
it
i •
I
I
\ ± i
rlE?hl
I
I I
o ? I I "t
v
I ?
0
I ?
I
w
Coo li-P-11-1 '
STS? D-,'DO - .2-{-00
v Pack Eck ?d?( 5
NOTE: ADT TD
.SCfILE
le!5112146 ,/5
/0)&,00.5EL /8'614 P
??? Eck ?/P? ,Tr/LET
{?ir?dPGSf? h
5k //D'/
W?SS?? Pn}lam
xf'1/5TiAlG 36" C1+tP
7ZZ) 8?F/a1??f?
rya? ?N?'%`,f
1
,Sla?A?IB?D
y./ pLD
4C/C PliY 1 WG
P,1'0T2L7-101J
TYPE-8
rO 239 Ai,
Y-re7-/cfJL
-,;W o?oo
lv t SS f_ P F«r'? CL'o55/iJf?
.1
r
Pro
pea/9?SFD
?W,9y
I
Z
S t ? ?1
C
v
00
ryLk
OPD.SLD 117r-A
/5"CAf' p 8!
R15AO?&l)
7CX Cjl&k DAM
I x S/L
15UIE-rd
='rv fr u"ti,? ,
AOT ;TO .SCE E
aisTirl,
D cJT.?pPE
4t,O
..5/,2480
?Tf? 1?2 fB0
&IM4
\ PRO PO.5f25 36 L• F, -/8't Ap
/0 1 7W TA._.
F 1
?;Tf?Jr
P?f'CS?zj
36 "C.at P
Scfi2f .M
rPOPz-,,_
7
--57W '/ t 3 3
OLD d l?W
-:Z# 2/t 33
;100P-MV S/LT
dcE
IREAM 64.41419L
Be A/[L,- A
V L.,r- 36''c'-AP
y" legi+1oVED
/"_/?' Y??77«IL
peoPo5E-D A&Z
L?W2 1--1146 5' --smirA
ffAnlnlEL 7d ? f/11..?.A
,IICx/
,57p,24+56 - STX 21D 4 50
Tf?(POe,4e- '
S/LT A5,46,?5
Rock ?/?c,e s -
Po'o)oo3z.2?
\I
P2DPO,:SeD 'agol-F
- 241'CMP
P90,0os-6-2) JUiJc_77oW
SC?E?'nl
1
EROSION CONTROL
DETAILS AND
SPECIFICATIONS
245.03 Temporary Silt Ditch ...............
245.05 Temporary Diversion
893.01 Temporary Silt Fence !H-
890.05 Temporary Slope Drain-with . Earth Berm .......... <-- •-
245.01 Silt Basin Type A 1 ................................. -0 245.02 Silt Basin Type B T
892.04 Temporary Rock Silt Check Type-A ..........
895.10 Temporary Rock Silt Check Type-B
892.01 Temporary Rock Sediment Dam Type-A ............
892.02. Temporary Rock Sediment Dam Type-B -_-
897.01 Rock Pipe Inlet Protection Type-A s
897.02 Rock Pipe Inlet Protection Type-B ............
894.01 Rock Silt Screen
245.04 Stilling Basin .......................................... ........
Rock Inlet Protection:
896.01 Type A ------------------------------- A OR ..A
896.02 Type B •-----------------------•-••--• B E3--OR
-- B ?
896.03 Type C ............................... C OR -- C)
12 March, 1992
TEMPORARY SILT FENCE:
A temporary silt fence is commonly used at the toe of a fill section to prevent off-
site sedimentation. It is made of permeable filter fabric buried at the bottom,
stretched and supported by steel posts. The silt fence reduces the water flow while
retaining the sediment. They may also be used to divert water flow to protected
outlets. Silt fences need to be checked after each significant rainfall to ensure there
effectiveness. They must be maintained on a regular basis. Silt fences shall not be
installed across streams, ditches, or waterways.
AREAS OF USE:
• At toe of fill sections where sediment runoff can be stored and contained
inside the project limits.
DESIGN CRITERIA:
Material With Wire Without Wire
Fabric Type 3 Class A Type 3 Class B
Steel posts length 5 ft 5 ft.
Post spacing 10 ft. 6 ft. maximum
17 March, 1992
z ¢
i
?- °:
m
z,
I -I I
fi I?I ax
I' I I i! Uz r4 LJ
U
III--------- ww z
m O Ex., w
zo
"'o ------ -- OE_
W M z
94 r.3
w? ¢w a I w3 Cf)
w o
_ z
w In
' N ¢ Er I I I- ? ~
HP mg mn #1#
x3 ¢m ?, ? ? CL "?z
III- ?'?J
as a ?- L) III O =xz?
o? c a ? ? o¢ .. ? ?Qu
ZD u w ? p .
i M T
r c? d W C O•?
H A w z Q.,
''?'--- w z z 3 ? F^r.
w w ¢ 0?-
-- °da ?aaw zrT. ?r
m -3 E-
?w wa w
I to En
E Q? M=C..C4 0
zx avn zww z
V x max aAac?xx Q
z da- xzwwaE"' I-
¢z ¢ M 4E- -'?.w
wx awaOa iI)
Ea. `$ AMW Ux?xx >, 3i
tqw aq? ?E-?OFtnwES
A m
z M--A E- o zlo
Hu x¢w G.,?1: d°aa0 °_!wI
E-o ?Hzcixzwwadcni°I
0-? wAazE-- zE-wE O!?¢
In ?a coQ?MtFWE 0 .r1QO 0
z oz Nl ¢. Z -Ow Ofs.A xd ?I .. ?.
a ¢ w; N
O cr;
lo'm?
oi¢
.z I
18 March,1992
TEMPORARY ROCK SILT CHECK TYPE-B:
A temporary rock silt check type-B (also called check dam) is a small dam with a
weir used to reduce gullying in drainage ditches that are to be filled or
permanently stabilized at a later date. These type-B rock silt checks help reduce
the flow velocity and are generally made of class-B stone. They are used in ditches
during construction where the grade meets and/or exceeds 3%.
AREAS OF USE:
• In channels, roadside ditch outlets, temporary silt ditches, and temporary
diversions.
• In conjunction with type-B silt basins.
DESIGN CRITERIA:
• Center of rock silt check shall be at least 1
(top of channel sides)
• The spacing (ft.) = (3 / % of ditch grade) X
foot lower than the outer edges
100 ft.
27 March, 1992
'r
a
U O 0
mu O i-:a,
w a
J 00
Z JS a
O J F- 0 3
F-JaZ
(DOSOZZ
O
'ji
ill- (nUOO nl
W
d
>
mzow (n a_
Z co
I
O = O
UaF-Wc-.
J ; W
J _ dW
O
O
Q n
=
• aWm•
> ?-
0-M UOm
Cn• S?+IL W
W ?-
WO Om
Z(rWLLCLWO N
p¢p J
__- w
OWU) Z(n 6N V
WF- COO--C<
!-
I • 1
LU
S
U F- o S J •-+ - F- J =
w O OUaZ(nU
Z LL .- O- ? . .- U
o CL
0 '
---I
a (n J s
0
~ S
S °
to .? ?-
?---+
Q?
O U C+y
N
a
0
0 7
I
g -
Q ?zv
? w LL ¢ u LLJ
?- m U zz?
C)
m CD
LL Lt d Z w
0
Lu o O
F-
Q cn
Z.,-r
N
? O 0O
u
m m ;
Q
F-
O = ?
O
o
/
Y U
Z F-
t l-
•
a.,, z
p o
?
0o .
w = y . w
F- U F-
?-'
-
- e > Z
- ?-- ° Z -•1 a WH
(n O - Z
-N = W Q
N O
----
o
p L
a o
a
LOW
(Ow
Ln
w
Q
o0 p> 0
? O
U z
0 <I
--
° f-
W.
01 Cl7
1 II Qiz¢;
rl °I N
i>
ill, D
E
,
o' m' 1
f o.
r a;
28 March,1992
ROCK PIPE INLET PROTECTION TYPE-B:
t.?
A rock pipe inlet protection type-B is a small horseshoe shaped structure. The
type-B rock pipe inlet protection shall be used at pipe inlets which are 24 inches
and less in diameter where there is insufficient space for a type-A rock pipe inlet
protection with storage area. The type-B rock pipe inlet protection utilizes class A
stone lined with #5 or #57 stone to protect drainage pipe structures by impounding
the sediment laden water before it enters the pipe to trap sediment. This device can
also be used around the inlet of temporary slope drains where space is limited at
the outlet end of slope drain such that a basin or other device can not be used.
AREAS OF USE:
• At inlets to pipes no larger than 24 inches in diameter where it receives flow
from several directions.
• In low flow areas where right of way is limited.
DESIGN CRITERIA:
• Structural stone - class A
• Erosion control stone - # 5 or # 57 stone.
• Dam height - 1.5 ft. minimum.
35 March, 1992
G CJ
J C4 W q E ? %CD
¢ Haz C, r-- o c ,-,
w a?n l
AE, W O E-`n a ::) c
S Crj
Z< a V1; o F-? z
W ¢ w0 •aZ? QgV1W
z C4 C, !x , o w
OWO~W1. E- 0 E- WC
X04 atz z.az' C?-4 m
.AE-m O W OO eozw.<Zw
Co E-C =U ¢ Q. zU6Cn EO»0V) Cl) LlJ
f?¢f1 zW 7E z W E..Z W W
azU.'z q=ww0.4wz
MV)-
E- U) UCGE-O , M -C4 ?a .I Z
Do E .<-0 f-
?.L "--- ¢`:"Or?Aawaw°c?WOF..xw 3
wE,U.ax E-waz UE»WW Q? Z
E-Cn 6zzZV ':Cow. .,ZEUxw J C)
O W=000 =E-00:0 L)F-
z MMUE--U WMEs..a.U ¢OE-? LL
f'--
w V
a- -? 1 W
a ¢ ?- LLJ x
v a F- .r
0 CD
> LL 3 Cr ?'. I ? 1
U LLJ a- a.
Z D Z
C:: O _ 1 F- 1 r
Cn C uj
- 1
Lli \\\yl 1 N
?
1 1 V.
1 1 f--? I ff ' ?~ QY?
Z u
Z pp
IOL 7?
. Q O O r-.
Cl- CD
7.. J v.
Q to O
D
?- r O
Q
Z
J 1 i
_ p Z
z lzi I Q
0 W `?? O I I Cr)
0 ZI -iii
7 Q' v Q V) 7 Lli J I A lf). '
p? ?I w? a
w IZ; E
P T h
1
-gym; -?.-
i Z-
36 6 March, 1992
ROCK SILT SCREEN:
A rock silt screen is a low-level dam structure to be used in streams below culvert
sites. Rock silt screens shall be used to trap sediment transported by running water
and shall be placed in the stream below the construction site within the right-of-
way or easement boundary. The rock silt screen utilizes class B stone lined with #5
or #57 stone to produce a ripple-effect in the stream to settle the larger sediment
particles transported in the stream from the construction site. The trapped sediment
shall be cleaned out before the device is removed from the stream.
AREAS OF USE:
• In live streams below construction sites where construction occurs in or
adjacent to the stream.
• In live streams below a culvert construction site.
• Where it can be cleaned before it is removed from stream.
DESIGN CRITERIA:
• Structural stone - class B stone
• Sediment control stone - # 5 or # 57 stone
• Dam height - 1.5 ft. minimum and 3 ft. maximum ( shall not be higher than
1 ft. above normal flow of stream)
37 March, 1992
vo G,
"_' ?? Gv
_ u0 m '1?'tJ
A-6 L-Li
t I 1
LL CL
5 LL LJ
?8
8
Vi
mac
•_ v) L V
. e_ L
J w
AO
m
v-_Z
_
i ¢ u
(n O Q?L«
a 0^
O w?
a W
xLC Z QZE- Q
E
Z
0
x
0 r
W
Z D
O?j¢OZ a
V)
Z E- 0.0 p- W E- ° Z
z
wp¢dwo zwu oWw ih
o
Q
zv?_ aV6: o m¢W wa
m a
.tn xwd
op0' ?+ o
rr p.ij. F- C,
-
v?w
x
Z =
F'
w? Cr
? U
?
Q
n
,
Z
* V (W
¢ dz L)
ozo0Z
z W.-P z
fi
z GaxwC W
Fw`WE-0m
WZE-
OW> =»
l? O
zj
W
w
L)Z OOOMdU1 -,M¢E-a'pm? NL
? U O?
- O
?E-xax= gaw¢wxxa¢x
E.. E-- V) ¢Waz E+¢a E-
ZdZZ
E
<
w2
E
? F
cr.c?
-ID
o
am
V?
z=¢
LL
O C40=00 xE-O= O xG- W ? O
v lZ
N AEI
?
i
r
Ill.li
Z I
IRM%l
I ?`•._._
o`- E
t
n m
w 0,
N
38 March, 1992